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When is fertilization most likely to occur?

A.

Immediately after menstruation

B.

Day 28 of a 28-day cycle

C.

Around ovulation (midcycle)

D.

immediately before menstruation

Answer and Explanation

The Correct Answer is C

A. Immediately after menstruation: The egg is not yet released.

B. Day 28 of a 28-day cycle: This is typically the start of a new cycle, not when ovulation occurs.

C. Around ovulation (midcycle) :This is the window of highest fertility.

D. Immediately before menstruation: The egg would have already degenerated if not fertilized.


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Related Questions

Correct Answer is B

Explanation

A. Causes the release of ADH: ADH reduces urination by promoting water reabsorption.
B. Blocks the reabsorption of Na+: Most diuretics act by preventing sodium reabsorption, which in turn prevents water reabsorption, increasing urine output.
C. Activates the renin-angiotensin-aldosterone system: This system conserves fluid and reduces urination.
D. Decreases GFR: Decreasing GFR reduces urine production.

Correct Answer is A

Explanation

A. Erythropoietin:
Erythropoietin is released by the kidneys in response to hypoxia to stimulate red blood cell production.

B. Renin:
Renin is secreted in response to low blood pressure, not low oxygen levels.

C. ADH:
ADH responds to high plasma osmolality and low blood volume, not oxygen levels.

D. Aldosterone:
Aldosterone is secreted in response to low sodium or high potassium, and part of the RAAS, not oxygen deficiency.

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